MySQL error in file: /engine/cache/system/plugins/1255b88e47893dcf446afe9dc45f9d35.php(11) : eval()'d code(3) : eval()'d code at line 397

Error Number: 1

The Error returned was:
Can't create/write to file '/tmp/MYQWAQ5L' (Errcode: 28 "No space left on device")

SQL query:

SELECT category, COUNT(*) AS count FROM dle_post WHERE approve=1 GROUP BY category